Check-controlled apparatus for pumps.



M. D. VAN AUKBN.

CHECK CONTROLLED APPARATUS FOR PUMPS.

APPLICATION FILED DEG.4.1918.

3 SHEETS-SHEET 1.

Patented Feb. 9, 1915.

2 TIE. lEL'.

M. D. VAN AUKBN.

CHECK CONTROLLED APPARATUS FOR PUMPS.

APPLICATION TILED DEC. 4. 1913.

1,127,550. v Patented Feb. 9, 1915.

l 3 BHEBTS-BHEET 2. Etna- M. D. VAN AUKEN. CHECK CONTRQLLBD APPARATUS FOR PUMPS. APPLICATION FILED DEC. 4, 1913.

1, 1 27,550. Patented Feb. 9, 1915.

3 SHEETSSHEET 3. HERE. 7 7

ii? I; 0" l UNITED STATES CHECK-CONTROLLED APliARATUS FOR PUMPS.

Application filed December 4, 1913.

To alien/1.0m it may concern.

Be it known that I, Maawoon D. VAN Arum, a citizen of the United. States, residing at New York, in the State of New York, have invented a new and useful Improvement in Check-Controlled Apparatus for Pumps, of which the following is a specification. v

This invention relates to a check controlled device whereby a measured quantity of liquid is delivered from a rotary pump and the special object of the invention is the delivering of a predetermined amount of gasolene by means of said pump upon the inserting of a suitable coin or check into the apparatus.

A further object of the invention is to provide a device of this kind which can be attached to any of the measuring pumps now in use. or to any gasolene pump operated by a rotatable handle by removing the operating handle at present employed and substituting therefor my check controlled device.

A further object of the invention is to provide a mechanism of this kind which will prevent the drawing of more of the liquid than the amount paid for by giving the handle merely a partial rotation, reversing, and repeating such short movements or strikes.

With these and other objects in view, the invention consists of the novel features of construction hereinafter described, pointed out in the claims and shown in the accompanying drawings, in which;

Figure 1 is a vertical section through my device positioned upon the shaft of a measuring pump and'on the line l-1 of Fig. 2. Fig. 2 is a top planview, the top plate being partly broken awav in order-to show the mechanism arranged beneath said plate. Fig. 3 is a section on the line 3.-3 of Fig. 1 looking in: the direction of the arrow. Fig. i is a detail section on the'line -4:4' of Fig. 2. Fig. 5 is a section onthe line 55 of Fig. 1. Fig. 6 is a plan view of a certain locking device. Fig. 7 is a section on the line 7-7 of Fig. 6. Fig. 8' is adetail perspective View of a slidable block. Fig. 9 is a detailside elevation ofa traveling nut and certain parts connected thereto. Fig. 10- is a detail perspective view of a' spring pressed coin moving block. Fig. 11 is-a do tail perspective View of a docking bolt. Fig. '19 is an=-invertedplan view of a coin press- Specification of Letters Patent.

Patented Feb. 9, 1915.

Serial No. 804,603.

ing plate. Fig. 13 is'a side elevation of said plate.

In the drawing, 1 represents the pump shaft, and is the only portion of the pump mechanism shown, and also the only portion affected or employed in putting my device into position. Fitting upon this shaft is a suitable casing 2 secured in place by any desired means, as by a lug 3 through which a suitable screw may be passed, although it will be understood that the casingmay be attached in any desired manner to any portion of the pump frame to which it may be convenient to secure such casing. The lower portion of the casing contains a coin eceiving compartment at to which the coin is conducted by means of a chute 5.

It will of course be understood that the word coin includes any form of check which it may be desired to use in connection with the machine, or which could be employed in connection with my apparatus.

The various parts of the apparatus may be divided broadly into three parts, those which receive the coin, and act upon it or are acted upon by the coin itself prior to its passage into the chute 5: those parts mounted upon the shaft 1, and directly concerned with the delivery of the liquid. the operation of these parts following and being dependent upon the operation of the first mentioned parts; and lastly those parts arranged adjacent the shaft and designed to prevent improper working of the liquid delivering mechanism.

The invention will probably be most clearly understood if the construction and operation of the various parts are described in'the order in which the various-operations take place. The top of the casihgis pro vided with-a coin-receiving opening 6 pro vided with beveled edges, and a-slot- 7 in which works a. slide 8,-the outer end of which is bent upwardly to form a handle".

The said slide is provided with a coin receiving opening Qwh-ich' is normally i115 aline ment with the coin receiving opening 6. Fitting loosely withinthe opening 9 is a plate- 10 having beveled sides, and a guide lip 10 for the coin and'secur'ed in position by means of a slightly bent flat spring 11,=

secured at one end to the slide 8 and at the other end to the plate 10. The coin after being placed inthe recess 6 is pushed inwardly against the lip 10 and slips beneath the plate 10 and drops through the opening 9 in the slide 8 and comes to rest in asuitable passage-way 12' extendin below the groove 7 in which the slide wor (s. The upper end portion of the slide has a depending lu 13 and there is also placed upon the un-' derside of the slide a block 14 loosely con- I nected by means of a suitable pin to the slide, a detail View of said block being shown in Fig.-10. A coil spring 15 extends betweenthe lug 13 and the block 14, its ends resting in suitable recesses, formed in the opppsing faces of the lag and the block and .said spring normally spaces the block from the lug.

Carried by the underside of the top portion of the casingand movable'in a guideway 16 arrangedIt-ransversely with respect of which is oppositely beveled as shown in to the slide 8is a block 17, and said block, shown in detailin Fig. 8 has at one end and uponits upper face a lug 17 the inner face the drawings. Upon the end of the block opposite the lug 17 is a lug 18 one end of which: is beveled as shown at 19, and said lug i's notched at 18*. From the underside of the block depends a fork 20.

Upon the shaftzl islloosely and rotatably gmounted a handle 21 and a suitable disk 22 at disk having an extension upon one side,

and said extension carries laterally, that is upon the uppenside of the casting, a suitable socket 25, in which isaarranged aplunr ger 26, shown-in detail in Fig. 11. This plunger is-in the form of a rectangular block hollowed out to receive a spring. 27 and carries atits side ailug 28' beveled at one end as shown at 29 or oppositely with respect to the bevel L9 of the lug 18, with which it is de; signed to cooperate. Said lug has a rib 28 designed to enterthe notch 18 of the block 17 and. lock the block and plunger together.

The underside of the plunger 26 carries a lug shaped to form a bolt 30 adapted to fit in the slot 23 of the wheel 22, when the bolt 26 isv pushed downwardly by expansion of the spring 27. Itis of course understood that the casingior socket 25 is provided with suitableopenings. through-which the lug 28 and the bolt 30..work. It will also be seen that as the block 26 is carried by a socket forming a part of the driver 24 the entrance of the bolt 30 into the slot 23 locks the handle 21 to the. delivery 24, and in order to fully understand the operation of the parts it; "must be carried in mind that the block 26 and taigied thereby rotate about the strikes such lug its movement will be temporarily checked. for reasons to be hereafter explained and this will cause the lug 13 to compress the spring 15 and move closer to the block 14. .The coin will then force itself past the lug 17 and in such passage will slide the block 17 in the guide way 16, thereby removing the lug 18 from engagement with the lug 28, thereby permitting the spring 27 to throw the bolt into the slot 23 of the wheel 22. As soon as this movement of the block 17 takes place the blrck 14 under pressure of the spring 15 will spring away from the lug 13 thereby flipping the coin so that it will be thrown into the coin chute 5. By this construction I avoid any danger of the coin sticking and remaining in the passage 12.

The casting 24 carries upon its inner face two oppositely acting ratchet wheels 31 and 32 and also a threaded sleeve 33. sleeve may have either right or left hand threads, according to the direction in which the pump handle is to be first turned as in some pumps the handle is turned in one direction, and in other makes of pumps the handle is turned in a reverse direction. Upon said threaded sleeve works a nut 34 which carries upon one side a cam bar 35,

the lower inward corner of the bar being cut out to form the cam surface. Pivoted upon a suitable bracket 36 is an angled arm 37 and the upper end of the arm is provided with a pin 38-which rests in the fork 20 carried by the underside of the block 17.

The lower end of the arm is provided with a pin 40 which normally rests in the cut out portion of the cam block 35. A coil 39 is secured and normally holds the pin 40 in engagement with the'cam block, and it is the spring 39 which causes the retardingpf the movement of the coin alongthe passage 12 when it comes into contact with the lug 17 and as this spring is of course stronger than the spring 15, the lug 13 must move up to the block 14 before the coin can slide the block 17, therebyv rocking the arm. 37 andstretching the spring 39..

It will be obvious that the sliding movement of the block 17 caused by pressure of the coin upon the lug 17 will rock the arm 27, a suiiicient distance to bring the pin 40 away fromthe cam face :of the plate 35. Upon operation of thehandle following the locking of the disk 22=and the casting 24 the shaft-1v will berotated,and rotation of the This 11 sleeve 33 will cause the nut to travel toward the inner end of said sleeve, said nut being held against rotation by means of a suitable guide rod 41 carried by the casing and extending loosely into a longitudinal bore formed in the nut. Upon the end of the inward travel of the nut the handle movement is reversed and in pumps of this kind one 01' more complete rotations of the handle are made, in opposite directions in order to deliver a certain amount of liquid.

A. number of turns of the handle in each direction will vary with the type of pump, and in order to preventthe securing of a larger amount of the liquid than was paid for, as for example, by juggling the pump through a series of short movements of the handle in first one and then the other direction, I provide the following described mechanism: Mounted upon a bracket arm 42 is a horizontally swinging block 43. This block has slidably secured upon one side a plate 4'4, suitably slotted to allow for the sliding movement and being locked in an adjusted position by a set screw 45. This plate carries a beveled lug 46 shown most clearly in Fig. 6, and which overhangs the top of the block 4:3, a pin 47 is carried by the nut and at the limit of the inward travel of the nut this pin engages the beveled lug 46 thereby swinging the block 43 upon its pivital point. 1 have previously referred to the oppositely formed ratchet wheels 31 and 32. Suitable pawls 48 and 49 connected by a spring 50 respectively engage these ratchet wheels, only one pawl being in engagement at a time. The block 43 carries at its free end a cam lug 51 also adapted to be engaged by the pin 47 and oppositely constructed and placed with respect to the lug 4:6. The block also carries at its free end a horizontally extending pin 52 which rests between the pawls 48 and 49, and it will be obvious that as the lugs 46 and 51 are alternately engaged by the pin .47 the plate will be swung in opposite directions, thereby causing the pin 52 to throw one of the pawls into engagement with its ratchet wheel and to lift the other pawl out of engagement with its ratchet wheel. Small spring pressed plugs 53 work in the under face of the block 43 and engage suitable recesses in the bracket 42 thereby holding the block 43 against accidental, or free swinging movement. It will be obvious therefore that while the nut is traveling in one direction one pawl is in engagement with one of the ratchet wheels, and no reverse movement of the handle can take place until the nut has reached the limit of its travel and has lifted said pawl out of engagement with the ratchet wheel and has thrown the other pawl into engagement with the other ratchet wheel. The rotation of the handle can then be reversed and when the nut retravels the sleeve the reverse movement can continue until the nut reaches the pos tion shown in Fig. 1, when the pin 40 w1ll agaln drop into the cut-out portion of the cam plate 35, which permits the spring 39 to slide the block 17, and the beveled face 19 and the lug 18 will engage the beveled face 29 of the lug 28 and will lift the block 26 thereby withdrawing the bolt 30 from the slot 23, thus disengaging the disk 22 from the driver, and stopping further rotation of the shaft 1 until another coin has been inserted in order to again lock the handle to the shaft.

/Vhat I claim is:

1. The combination with a rotary shaft of a pump, a casing fitting over a portion of said shaft, a handle loosely fitting upon a shaft upon the exterior of the casing, a slotted disk connected to said handle and arranged upon the interior of the casing, a driver connected to said shaft, a spring pressed bolt carried by said driver and gagement thereof with a check, a nut adapt-- ed to travel longitudinally with respect to the shaft, means engaged by said nut at the limit of its movement in one direction for permitting reversal of the direction'of movement of the handle, and means carried by said nut for throwing into operative position the means for holding said bolt out of the slot of the disk upon return of the nut to its first position.

2. In a device of the kind described a casing, a coin opening therein, a coin passage, a slide having an opening therein in alinement with the coin opening, a beveled plate fitting in said opening, the coin passing beneath said plate and through the opening in the slide into said passage, a movable spring pressed block carried by the slide and adapted to travel in said passage, and to move the coin along said passage, a pump operating member, a handle therefor, means for look- .ing said handle to said pump operating member, means normally holding said looking device in an inoperative position, said last mentioned means projecting into the coin passage in position to be struck by the coin, the said spring pressed block being adapted to move rearwardly upon the checklet.

bolt carried by the driver and adapted to enter the slot of the disk, a slidaole block normally holding said bolt out of said slot, a coin passage, a betel lug carried by said block and projecting into said coin passage, means for moving the coin along said passage into engagement with said lug, oppositely formed ratcliets rotating with said shaft, pawls adapted to alternately engage said ratohets, a nut adapted to travel longitudinally upon the shaft, means connecting said nut and said slidable block, and means actuated by travel of said nut for moving said paivls. 1

4. In a device of the kind described, a shaft, a handle loosely mounted thereon, a disk connected to said handle, a casting fixed upon said shaft, coin actuatedmeans for locking said casting to said disk, oppositely formed ratchetscarried by said casting, a threaded sleeve carried by the casting, a nut working on said sleeve, pawls adapted to engagesaid ratchet, a pivoted plate adapted to actuate said paWls and means carried by said nut for swinging said plate.

5. A device of the kind described comprising a rotatable shaft, a handle, spring pressed means for locking said handle to said shaft, a beveled lug carried by said spring pressed means, a slidable block having a portion projecting into the path of travel of a check and movable by engagement with said check, a beveled lug carried by said block and normally resting belowthe lug of the locking device thereby holding the same in an inoperative position, an angled arm having one end operatively connected to said slidable block, a nut adapted to travel longitudinally upon the shaft, a cam block carried by said nut and in engagement with the opposite end of said arm, and means for preventing reverse rotation of the handle until the nutreaches its limit of travel in either direction.

6. In a device of the kind described, the combination with the rotary shaft of a pump, of a handle mounted loosely on said shaft, a slotted disk carried by the handle, a driver connected to the shaft, spring pressed means carried by the driver and adapted to engage the slot of the disk, means for normally holding said parts disengaged, the said means being rendered inoperative by engagement with a check, a nut mounted on and adapted to travel along said shaft, means engaged by said nut at the limit of its movement in one direction for permitting reversal of directionof movement of the handle, and means carried by said nut for bringing into active use the means for holding said driver and disk in disengaged position, said nut carried means becoming active upon return of said nut to its normal position.

MARWVOOD D. VAN AUKEN.

Witnesses:

R. J. BINGHAM, CHARLES S. ABBOTT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O. 

